Aquarium LED light Fluval Fluval C.O.B. Nano LED model FV-5435, compact COB LED fixture for small tanks

Fluval C.O.B. Nano LED model FV-5435 is a compact COB (Chip-on-Board) LED fixture designed for nano and small aquariums. The unit provides uniform, focused illumination across a small tank footprint and is suitable for freshwater and planted setups. Its low-profile housing mounts on aquarium rims to deliver efficient light output while minimizing heat generation and visual bulk.

Advantages

The COB LED array produces even light distribution with reduced shadowing compared to discrete LED emitters, supporting consistent appearance and plant photosynthesis in small tanks. The compact form factor makes the fixture easy to install on standard aquarium rims without occupying interior tank space. Low heat output extends safe operating times and helps maintain stable water temperature, while efficient power consumption reduces operating costs.

Suitable for

• Nano freshwater aquariums
• Small planted tanks with low to moderate light requirements
• Display tanks for small community fish or shrimp
• Desk or shelf aquariums with limited overhead space

Key specifications

• Light source: COB (Chip-on-Board) LED array
• Intended tank size: nano and small aquariums
• Mounting: rim-mounted, low-profile design
• Suitability: freshwater and planted setups
• Thermal characteristics: low heat generation during operation
• Optical output: uniform, focused illumination for small footprints

How to use

Place the Fluval C.O.B. Nano LED on the rim of a compatible nano or small aquarium so that the fixture rests securely and evenly. Connect the unit to a suitable power source following manufacturer instructions and position it to provide even coverage across the aquascape. For planted setups, start with a moderate photoperiod and adjust duration or distance as needed to achieve desired plant growth without promoting excessive algae. Ensure the fixture is mounted to avoid direct contact with water and inspect mounting stability periodically.

Usage recommendations

For planted nano tanks, begin with 6–8 hours of light per day and monitor plant response and algae development. Increase or decrease photoperiod gradually and consider supplementing with liquid fertilizers or CO2 for higher-demand plants. Regularly check that the rim mount remains secure and keep ventilation clear to maintain low fixture temperature.